Rifle lower receiver



FIG. 1 is a perspective view of my new design for a rifle lower receiver;

FIG. 2 is a left side view of the rifle lower receiver shown in FIG. 1;

FIG. 3 is a front view of the rifle lower receiver of FIG. 1;

FIG. 4 is a rear view of the rifle lower receiver of FIG. 1;

FIG. 5 is a right side view of the rifle lower receiver of FIG. 1;

FIG. 6 is a top plan view of the rifle lower receiver of FIG. 1; and,

FIG. 7 is a bottom plan view of the rifle lower receiver of FIG. 1.

The broken lines are shown for illustrative purposes only and form no part of the claimed design. 

CLAIM The ornamental design for a rifle lower receiver, as shown and described. 